Panel 2.5: Data Interpretation - "indexing" and axis problems

GDDM-PGF V2R1.3 Interactive Chart Utility

Panel 2.5: Data Interpretation - "indexing" and axis problems

GDDM-PGF V2R1.3 Interactive Chart Utility
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Indexing is a way of showing a chart of things that are always changing. You would use indexing, for example, to show wage comparisons irrespective of inflation (more in Chapter 10, "Indexed charts" in topic 2.4).

Problems with the x axis are caused by line graphs often having plotted points unequally spaced on the x axis, whereas bar, polar, and tower charts usually have them at equal intervals.

If you want all polar chart labels to show, or if you have changed from a line to a bar or tower chart and want your bars or towers equally spaced, set Y values positioned as 2, at equal X intervals.

Other problems occur in tower charts, associated with the z axis. If you get a message about "unordered z values" when you are using tower charts, this can be solved by setting Y values positioned as 2, at equal Z intervals.

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